Mitsubishi Galant (2004+). Manual - part 318

 

  Index      Mitsubishi     Mitsubishi Galant - service repair manual 2004 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  316  317  318  319   ..

 

 

Mitsubishi Galant (2004+). Manual - part 318

 

 

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-463

STEP 1. Use scan tool MB991958 to select "ECU COMM 
Check" on the SWS monitor display.

Check the ETACS-ECU.

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958. Connect 
special tool MB991910 before connecting special tool 
MB991812. Be sure to connect special tool MB991806 after 
turning on special tool MB991824.
(1) Connect the special tool. Refer to "How to connect SWS 

monitor 

P.54B-13

."

(2) Turn the ignition switch to the "LOCK" (OFF) position.
(3) Operate scan tool MB991958 according to the procedure 

below to display "ECU COMM Check."
a. Select "Interactive Diagnosis."
b. Select "System select."
c. Select "SWS."
d. Select "SWS MONITOR."
e. Select "ECU COMM Check."

(4) Scan tool MB991958 should show "OK" on the "ECU 

COMM Check" menu for the "ETACS ECU" menu.

Q: Is "OK" displayed for the "ETACS ECU" menu?

YES : Go to Step 2.
NO :  Refer to Inspection Procedure A-3 "Communication 

with the ETACS-ECU is not possible 

P.54B-79

."

AC305411AB

MB991910

DATA LINK

CONNECTOR

MB991827

MB991824

MB991806

MB991812

AC302210

COLUMN SWITCH 
CONNECTOR

COLUMN SWITCH 
CONNECTOR AT 
HARNESS SIDE 

MB991812

AB

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-464

STEP 2. Check the input signal by using "DATA LIST" 
menu of the SWS monitor.

Check the input signals from the following switches:

• Ignition switch: OFF

• Driver's door: open

• Front passenger's door: closed

(1) Operate scan tool MB991958 according to the procedure 

below to display "ETACS ECU."
a. Select "Interactive Diagnosis."
b. Select "System select."
c. Select "SWS."
d. Select "SWS MONITOR."
e. Select "Data List."
f. Select "ETACS ECU."

(2) Check that normal conditions are displayed for the items 

described in the table below.

Q: Does the scan tool MB991958 display the items "IG SW 

(IG1)" and "FRONT DOOR SW" as normal condition?
Normal conditions are displayed for all the items : 
Go to 

Step 3.

Normal condition is not displayed for "IG SW (IG1)" : 

Refer to Inspection Procedure M-2 "ETACS-ECU 
does not receive any signal from the ignition switch 
(IG1) 

P.54B-490

."

Normal condition is not displayed for "FRONT DOOR 
SW" : 
Refer to Inspection Procedure M-4 "ETACS-ECU 

does not receive any signal from the front door 
switches 

P.54B-497

."

ITEM NO.

ITEM NAME

NORMAL CONDITION

ITEM 30

IG SW(IG1)

OFF

ITEM 32

FRONT DOOR SW

ON

AC305411AB

MB991910

DATA LINK

CONNECTOR

MB991827

MB991824

MB991806

MB991812

AC302210

COLUMN SWITCH 
CONNECTOR

COLUMN SWITCH 
CONNECTOR AT 
HARNESS SIDE 

MB991812

AB

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-465

STEP 3. Check the input signal (by using the pulse check 
mode of the monitor).

Check the following switches and input signals:

• Key reminder switch

• Interior light loaded signal

(1) Operate scan tool MB991958 according to the procedure 

below to display "Pulse check."
a. Select "Interactive Diagnosis."
b. Select "System select."
c. Select "SWS."
d. Select "Pulse Checking."

(2) When the switches (see table below), which are applicable 

for the input signal check, are operated, check if scan tool 
MB991958 sounds or not.

Q: When the key reminder switch and the interior light are 

operated, does scan tool MB991958 sound in each 
case?
Buzzer of scan tool MB991958 sounds normally. : 
Go to 

Step 4.

When the ignition key is removed and reinserted, scan 
tool MB991958 does not sound : 
Refer to Inspection 

Procedure N-1 "ETACS-ECU does not receive any 
signal from the key reminder switch 

P.54B-518

."

When one of the interior lights is illuminated, scan tool 
MB991958 does not sound : 
Refer to Inspection 

Procedure N-9 "ETACS-ECU does not receive any 
interior light loaded signal 

P.54B-565

."

STEP 4. Check ETACS-ECU connector C-218 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.

Q: Is ETACS-ECU connector C-218 in good condition?

YES : Go to Step 5.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Verify that the ignition key hole illumination 

light illuminates normally.

ITEM NAME

CONDITION

key reminder switch

Remove and reinsert the 
ignition key

interior light loaded signal

Turn on one of the interior 
lights

AC305412

AB

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827

AC305413AN

CONNECTOR: C-218

JUNCTION BLOCK
(REAR VIEW)

C-218 (GR)

HARNESS SIDE

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-466

STEP 5. Check at ETACS-ECU connector C-218 in order to 
check the ignition key hole illumination light circuit.

(1) Disconnect ETACS-ECU connector C-218, and measure at 

the wiring harness side.

(2) The ignition key hole illumination light should illuminate 

when terminal 69 is grounded.

Q: Does the ignition key hole illumination light illuminate?

YES : Replace the ETACS-ECU. Verify that the ignition key 

hole illumination light illuminates normally.

NO :  Go to Step 6.

STEP 6. Check key reminder switch connector C-310 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.

Q: Is key reminder switch connector C-310 in good 

condition?
YES : 
Go to Step 7.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Verify that the ignition key hole illumination 

light illuminates normally.

STEP 7. Check the ignition key hole illumination light bulb.
Q: Is the ignition key hole illumination light bulb in good 

condition?
YES : 
Go to Step 8.
NO :  Replace the bulb. Verify that the ignition key hole 

illumination light illuminates normally.

AC305413AN

CONNECTOR: C-218

JUNCTION BLOCK
(REAR VIEW)

C-218 (GR)

HARNESS SIDE

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

AC210777

68

74

63

66

72

73

67

65 64

61

70

71

62

69

60

57

58

59

56 55

52

54 53

51

CONNECTOR C-218
(HARNESS SIDE)

AB

AC305235AF

CONNECTOR: C-310

HARNESS SIDE

 

 

 

 

 

 

 

Content   ..  316  317  318  319   ..